{% load static %}
<nav class="navbar navbar-default" style="background: linear-gradient(135deg, #ffffff 0%, #f8f9fa 100%) !important; border-bottom: 1px solid rgba(0, 0, 0, 0.1) !important;">
  <div class="container-fluid">
    <!-- Brand and toggle get grouped for better mobile display -->
    <div class="navbar-header">
      <button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1" aria-expanded="false">
        <span class="sr-only">Toggle navigation</span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
        <span class="icon-bar"></span>
      </button>
      <a class="navbar-brand" href="{% url 'main:index' %}">音乐世界</a>
    </div>

    <!-- Collect the nav links, forms, and other content for toggling -->
    <div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
      <ul class="nav navbar-nav">
        <li class="{% if request.resolver_match.url_name == 'index' %}active{% endif %}">
            <a href="{% url 'main:index' %}">🏠 首页</a>
        </li>
        <li class="{% if request.resolver_match.url_name == 'LoveListView' %}active{% endif %}">
            {% if user.is_authenticated %}
                <a href="{% url 'main:LoveListView' %}">❤️ 我的喜欢</a>
            {% else %}
                <a href="{% url 'user:login' %}">❤️ 我的喜欢</a>
            {% endif %}
        </li>
        <li class="dropdown">
          <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
            🎵 音乐分类 <span class="caret"></span>
          </a>
          <ul class="dropdown-menu">
           {% for c in classify %}
                <li><a href="#" class="classify-btn" data-id="{{ c.id }}">🎶 {{ c.title }}</a></li>
            {% endfor %}
          </ul>
        </li>
      </ul>
      
      {% if user.is_authenticated %}
      <form class="navbar-form navbar-left" method='get' action="/search/">
        <div class="form-group">
          <input type="text" name="q" class="form-control" placeholder="🔍 搜索音乐..." value="{{ request.GET.q }}">
        </div>
        <button type="submit" class="btn btn-default">搜索</button>
      </form>
      {% else %}
      <form class="navbar-form navbar-left" method='get' action="{% url 'user:login' %}">
        <div class="form-group">
          <input type="text" name="q" class="form-control" placeholder="🔍 搜索音乐..." value="{{ request.GET.q }}">
        </div>
        <button type="submit" class="btn btn-default">搜索</button>
      </form>
      {% endif %}
      
      <ul class="nav navbar-nav navbar-right">
           {% if request.user.is_authenticated %}
          <li class="dropdown">
              <a href="#" class="dropdown-toggle" data-toggle="dropdown" role="button" aria-haspopup="true" aria-expanded="false">
                {% if request.user.head %}
                    <img src="{{ request.user.head.url }}" alt="头像" class="user-avatar">
                {% else %}
                    👤
                {% endif %}
                {{ request.user.username }} <span class="caret"></span>
              </a>
              <ul class="dropdown-menu">
                <li><a href="{% url 'user:center' %}">👤 个人中心</a></li>
                <li><a href="{% url 'user:change_password' %}">🔒 修改密码</a></li>
                <li role="separator" class="divider"></li>
                <li><a href="{% url 'user:logout' %}">🚪 退出登录</a></li>
              </ul>
          </li>
          {% else %}
          <li><a href="{% url 'user:login' %}">🚀 登录</a></li>
          <li><a href="{% url 'user:register' %}">📝 注册</a></li>
          {% endif %}
      </ul>
    </div><!-- /.navbar-collapse -->
  </div><!-- /.container-fluid -->
</nav>